Transformers explained

[@rebeccawood2862]

I swear u just taught me more in 6 minutes than my physics teacher has ever done thank u!!

[@jenueledwards8786]

Wait I'm going to Learn this in physics💀

[@pointlesslylukesplainingpo1200]

its probs because you didnt listen in class. stop blaming everything on teachers.

[@hackingandelectronics9333]

Yes you are right

[@jenueledwards8786]

@@pointlesslylukesplainingpo1200 stop being an ass you habe no idea if they did listen or not

[@solimanski420]

@@jenueledwards8786 stop blaming everything on the teacher, you don’t know if op was listening in class too

[@kobiesboxing4956]

A good teacher can simplify things, and make the hardest topics easy to understand while a bad teacher can complicate things, and make the easiest subjects hard to understand. And this guy is a good teacher because I got it the first time around, and this is electrical that we're discussing.

[@EdUnleashed1]

Best explanation I have found for transformers! Thankyou

[@Marianne_000]

Took me so long to wrap my head around this, but you've made it all make sense! Thank you

[@briansansone]

Seriously good explanation. Ive watched a ton of videos on transformers. This is the first that points out that the alternating magnetic field, is basically the same as a wire moving through a magnetic field . It all became clear. How and why they work. Thanks!

[@GETOUTT8ROCK]

This just helped me with half of my quiz. Only 5 minutes. Crazy. Thanks !

[@DinoWinoSaur]

Seriously one of the best and simplest explanation on transformers

[@deeondrums]

Great explanation.

[@SwiftBricks]

This really cleared things up for me!! Wow, you literally summed up a 2 hour lesson in a nutshell!

[@AWSMEAD]

Excellent video. Very helpful for an assessments I have coming up. Cheers for taking the time

[@linkielndlovundlovu1688]

You explanation is so simple...thank you

[@QualityTuTz]

Thanks for the video! You saved me about 3 pages of notes to read through :-)

[@safayousif8197]

the ONLY good transformer explanation THANK YOU

[@SA-mm1ek]

The best explanation on KZbin. Subscribed!

[@raihanislam912]

I sort of get this after 2 lessons in school, here, I get it perfectly after 5 mins thank man.

[@malekzalfana9940]

Bravo great info

[@借一盏月色]

Thanks for bundle ! Very clear explanation made me finally understand!

[@anjumwaqar6708]

thanks a lot. Really helped. Greatly explained

[@cocodoeseverything]

Plot twist:- We started our lecture with this video

[@andersenssandersenss8979]

best vid about transformers so far!

[@danielbrooks356]

This video is more helpful than my physics teacher. Thank you!

[@mariamcu84]

everything makes so much more sense, tysm

[@ryhimereid3306]

Simple and clear. Much respect boss

[@atomicdmt8763]

so elegant! / so simple.

[@wanilekananndranesile7143]

Can we join tip of wire from primary to secondary coil..,?

[@akshobiya7501]

Fantastic. Thank you!

[@elijahj9902]

5:15 can you do 10 turns on Np and 1 turn on Ns and still get 23v?

[@ben_7933]

Lifesaver. Thank you so much 🙏

[@samsunglg6671]

For transformer chargers that converts voltage ranging from 100-240 volts like information technology, laptop, and phones how are the "turns" around the iron core differentiate the voltage input for the 5 volt output for the batteries?

[@CowenPhysics]

+SamsungLG They are AC-DC converters and use power electronic switching, rather than a simple iron core transformer. www.docircuits.com/learn/how-stuff-works-your-ever-helpful-cell-phone-charger/

[@samsunglg6671]

+Cowen Physics that was crazy of me to get so literal, thx

[@venkateshbhalekar4123]

What may happen if I use dc caront in primary coil

[@CowenPhysics]

DC will still magnetise the coil and the core. However, without a changing magnetic field, no voltage can be induced in the secondary coil.

[@hamiars.m.5180]

@@CowenPhysics good answer 👏🏽👏🏽👏🏽👍🏽

[@kavindurathnayake8918]

this was really helpful thnx

[@gk-bl6yu]

What are those arrows for if doesnt indicate current? The arrows around the core.

[@matthewanderson4324]

Why would there be more turns in the primary coil if it's the secondary coil that has more turns?

[@imraanmitha3280]

So in order to keep electricity from flowing through the iron core the copper wire has to be coated in a non conductive coating correct?

[@gauravpawar3919]

current is not flowing through the iron core.only magnetic field exists in the iron core

[@garthwagner5782]

lol I’m in lineman school and have a test on this in a couple days thank you for breaking this down Barney style unlike my text book so I can pass my test

[@michaelrogers3857]

Do you knoe happens to the current of the secondary does it change or stay the same? If the primary was 10v and the secondary was 100, youd need 10x more wraps on the second to increase the volts to that amount, but would the current drop because the volts goes up?

[@markpeti]

thankyoueversomuch awesome explanation

[@goldentitan100]

Oh I was thinking of the transformers movie XD now I understand why this is so weird.

[@Another-Moe]

Question . At 1:07 you said there's no current flowing through the core, but the coil is attached to the core doesn't that transfer the energy ?

[@CowenPhysics]

Rich Handsome The coil would be insulated to prevent current being conducted through to the iron core. (In reality, there are actually tiny currents called eddy currents flowing in the core, but this is an undesirable side-effect.)

[@realdragon]

Would it be better if iron core had oval shape of magnetic flux or it doesn't matter?

[@basharsilawi]

Thanks very much

[@blau363]

As far as I understand, you dont need a current in the primary coil to have a varying magnetic field inducing an electro motive force in the secondary coil. If the primary is subjected to an alternating voltage, there would directly be a changing magnetic flux in the iron core. This changing flux, would induce a circulating current in the secondary coil (if connected to a user) that, in turn, would recall a current in the primary coil to balance the secondary current so produced. The current in the primary is the effect not the cause.

[@1992jkwj]

So say for a step up transformer, if I had say 5 volts running through the primary coil, if the secondary coil is winded twice as much as the primary, would it be 10 volts on the secondary? As I was writing this, the equation was explained. Go figure, I was right.

[@amyvanderhoven9751]

Thanks for cutting down my study time!

[@samriddha5090]

Best explanation ever, thank you

[@World_Theory]

So… A transformer is to electricity, as reduction gears are to kinetic energy? If you increase the voltage of the secondary coil compared to the primary, do you lose amperage? I really want to thoroughly understand electromagnetism, but it's difficult. I love it, but it's so vexing…

[@johnakridge2916]

Transformers are an Electrical Motor thats what they are. They are Devices that Transformer minimal Electricity into High Voltage Electric by means of Copper wiring and the magnet and other materials. The Copper Coils must match the Voltage to get a High output of Electricity. Bc the Electricity goes around Resonates with the the other coils next to it creating Resonance friction with the Help of the Magnet thats how the Higher output is made using friction with Electricity and metal creating Electrical friction that makes more power. This means the higher amount of coil the higher amount of input supply there must be from the electrical source,otherwise you short the output supply of electricity coming out bc it has to go inside the bigger coils and fill up the extra space in the metal and create Resonance with the coils next to it but it isnt able to generate Enough voltage with only minimum power to create enough resonate friction through the partnered coils to create more power output. If you have to less coils than the coils will fry cause the energy input will resonate and cause too much energy for the coils that they will waste away bc it will over energize and heat the minimal coils that wont be able to hold themselves. You have to have the Right amount of wound Coils and Right amount of Voltage for those coils, not to much not too less but just the Good amount to see Good results, it doesn't have to specific but just right. Once you have your coils set up and you and your Battery to power your fully assembled Transformer you can make more power output from the Transformer coming from the Source of your Battery. Make sure Everything is set up correctly though, you do not want your battery to explode by having an opposite affect lol. Electricity is something that should be tested with someone who knows how to use it. Yes it involves the Magnet but the voltage gets generated from the friction with the electricity in the coils that involves the magnet who had it happen

[@Happy123]

But what's the theory behind the secondary coil having multiple coils, is it related to faraday's law stating that the emf induced is proportional to the rate of change of magnetic Flux

[@kreeperfrm559]

What would happen if I hook up speaker wires with coils and iron cores 🤔 when the bass drops would I get sucked into a wormhole or something....Im messing around about that lol.....but like seriously what would happen? Like the speaker wire then a coil with iron core then the amp

[@Bumi_01]

Correct me If I’m wrong but when you talk about the north and south pole induced by the current at 2:35 you say that the North Pole will be at the top. I think it should be the other way around since the coil gets wrapped around from the back of the iron core. If you use the right hand rule and curl your fingers around your thumb, while the thumb points in the direction of the current, the flux should be going down inside the core.

[@Bumi_01]

And since the flux is going down inside of the core, the North Pole will be induced there. Am I right or am I missing something?

[@CowenPhysics]

Hi @KingBumi - it's years since I made this video, but I don't think I show the current travelling in any particular direction, so we can't know which end would be north.

[@Guttor]

@@CowenPhysics the diagram shows dotted lines with arrows which is assumed to be current

[@destroya3303]

How does this jive with conservation of energy?

[@CowenPhysics]

+Des Troya Power is the rate at which energy is transferred, so if energy is conserved, so is power. Power = voltage x current. If the voltage increases, the current decreases, so power remains constant, hence energy is conserved. In the real world, some energy is dissipated as heat and in magnetic losses, so the power out of the secondary is a bit lower than the power into the primary.

[@destroya3303]

Cowen Physics since current itself is a function of resistance and voltage. I = V/R, does this imply that more turns on the wire increases the resistance of the wire?

[@CowenPhysics]

+Des Troya No. You cannot treat a transformer like an electric circuit in this way - the change in voltage/current happens because of magnetic induction. (Having said that, a longer wire would inevitably have a higher resistance, but that's got nothing to do with how the transformer works.)

[@imraanmitha3280]

Cowen Physics so I understand that in order to raise the voltage on the secondary, it must have a lower current because the power remains the same. But I'm having trouble understanding why the current has to be lowered in the second coil. What is it about the more loops makes the current plummet?

[@fatimaali-gm9yj]

May God bless you!!It helped me a lot

[@ahmedyasir626]

Thanks alot

[@eriskennish1380]

But if power is conserved, then a higher secondary-coil voltage produced by more coils would mean current is lower, as P=I*R. But more coils mean current is higher as they add up. So is current higher or lower?? How do these things not contradict each other??

[@TiberiusStorm]

So you put Current in and get Voltage out? Why would it not be Current out as well?

[@hadronexmako9315]

Thanx bro

[@jimmytorreon9615]

Sir, i just want to ask how to increase current? , not voltage .

[@raffaeleaiello6718]

When you decrease the voltage it increases the current, you are simply trading current for voltage rather than creating more of one

[@100najaja]

2:40 if the frequency is 50Hz, doesn't it change 100 times per sec?

[@CowenPhysics]

+Oekanos The magnetic field is induced by the current, which is changing 50 times per sec.

[@arjavgarg5801]

its 50 times South and 50 times north

[@stig-osaurusrex2500]

Old reply I know, but I came to the comments thinking the same thing. If 50Hz, thats 50 cycles in one second. Thinking about it like a sine wave, a full cycle would be a pole change from North to South, then back to North. So 2 pole changes in one cycle. 100 pole changes per second.

[@edoupdates9935]

GENIUS

[@Another-Moe]

And the insulation doesn't effect the magnetic field?

[@CowenPhysics]

Rich Handsome Correct.

[@Another-Moe]

Ok thank ma man

[@Annibals]

WOOOOOOOOOOOW. Finally understood thish. Arigato Gozaimaaaaaaaaaas

[@voodoo3327]

thanks that was helpful

[@joy0323]

Thank you!!

[@EunisCheung]

thank you

[@faranhasan616]

Thanks helped a lot👄👄

[@celineal-bukhari4809]

lovely

[@roxythestarfox143]

I thought they ran on Energon

[@raoufkhan8415]

great

[@luongmaihunggia]

Not detailed enough. You didn't go to why we need so much winding when we could have just have 1 winding instead of 100 on the primary and 10 winding instead of 1000 on the secondary.

[@MrJeffcoley1]

Very disappointed in this video, didn't mention Optimus Prime once

[@almigdadsuliman2946]

3.43

[@roxythestarfox143]

Who else clicked on this video thinking he was about to talk about Optimus Prime, or Starscream?

[@anaga6049]

RIP Stephen Hawking.

[@GalacticBlader]

this is the WRONG transformers video lol

[@roxythestarfox143]

Ikr I was expecting him to talk about Optimus Prime, Megatron, Starscream, and all of the other Transformers

[@marlonsterling]

Anak IBC mana Suara nya

[@niazashraf9529]

1

[@mbkmbk5950]

""""Lamp......can make lighting in the darkness. """"Why no body invent .....dark lamp...to make darkness in the light...?

[@_sharma_2666]

😨🤮🤮